Alert archive / Arizona / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 510

July 14, 20026 counties in Arizona

The Storm Prediction Center issued this severe thunderstorm watch at Jul 14, 2002, 3:00 PM MST for 6 counties in Arizona. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 14, 2002, 3:00 PM MST (22:00 UTC)
Expired
Jul 14, 2002, 9:00 PM MST
In force
6 hr
Issued by
the Storm Prediction Center

Counties Cochise County, AZ, Graham County, AZ, Greenlee County, AZ, Pima County, AZ, Pinal County, AZ, Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 96 km from the middle of the area, began a volume at 21:59 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Warnings issued inside it

9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 14, 3:06 PM MSTSevere Thunderstorm WarningTWCSanta Cruz39 min
Jul 14, 3:33 PM MSTSevere Thunderstorm WarningTWCGraham, Greenlee57 min
Jul 14, 4:04 PM MSTSevere Thunderstorm WarningTWCPima41 min
Jul 14, 4:44 PM MSTSevere Thunderstorm WarningTWCPima61 min
Jul 14, 5:02 PM MSTSevere Thunderstorm WarningTWCGraham28 min
Jul 14, 5:46 PM MSTSevere Thunderstorm WarningTWCPima29 min
Jul 14, 7:51 PM MSTSevere Thunderstorm WarningPSRPinal39 min
Jul 14, 7:56 PM MSTFlash Flood WarningTWCPima, Pinal64 min
Jul 14, 7:57 PM MSTFlash Flood WarningTWCPima, Pinal2 hr

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 10.0 hours before the alert went out and 69 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tuscon, AZ at 12:00Z on 2002-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1354 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2002-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1354 J/kg
Mixed-layer CIN
-301 J/kg
Mixed-layer LCL
1933 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

Nearby

Severe Thunderstorm Watches in Arizona, 2002Every severe thunderstorm watch in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.